A method for making sheets of polycrystalline silicon (for solar photovlotaic devices) in which molten silicon is drawn upward by capillary action through a mold.

Efficient Deck Hand.

Abbreviation for "Electronic Data Interface." Generic term for transmission of transactional data between computer systems. EDI is typically via a batched transmission, usually conforming to consistent standards.

Electronic Data Interchange.

Type of tanker used to carry different types of oil for human consumption.

International data interchange standards sponsored by the United Nations. See UN/EDIFACT.

Electronic Data Transfer

European Economic Community.

The area (in sq inches) of the filter element that is exposed to the flow of air or fluid for effective filtering.

The maximum load that a device is capable of carrying.

That part of snow melt that reaches stream channels as runoff.

A notional continuous sound level which is calculated from the various A-we~ghteds ound levels and duration at these levels with an XdB exchange rate. The exchange rate is the number of dB decrease in noise level which would allow doubling of exposure tim ...

The difference between the outgoing infrared terrestrial radiation of the earth's surface and the downcoming infrared counterradiation from the atmosphere.

The amount of energy service or useful energy delivered per unit of energy input. Often used in reference to lighting systems, where the visible light output of a luminary is relative to power input; expressed in lumens per Watt; the higher the efficacy v ...

Ability of a filter to remove particle matter from an air stream. Measured by comparing concentrate of material upstream and downstream of the filter. Typical particulate sizes range from .3 micron to 50 micron.

Under the First Law of Thermodynamics, efficiency is the ratio of work or energy output to work or energy input, and cannot exceed 100 percent. Efficiency under the Second Law of Thermodynamics is determined by the ratio of the theoretical minimum energy ...

A measure of the efficiency of an appliance's energy efficiency.

Is the ratio of the theoretical work requirement to the actual work required to be performed on the gas for compression and delivery.

Is the ratio of the theoretical work calculated on an isothermal basis to the actual work transferred to the gas during compression.

Is the ratio of the thermodynamic work requirement in the cylinder to actual brake horsepower requirement.